CN104180293A - LED (light emitting diode) floodlight lens and lamp - Google Patents
LED (light emitting diode) floodlight lens and lamp Download PDFInfo
- Publication number
- CN104180293A CN104180293A CN201310193502.6A CN201310193502A CN104180293A CN 104180293 A CN104180293 A CN 104180293A CN 201310193502 A CN201310193502 A CN 201310193502A CN 104180293 A CN104180293 A CN 104180293A
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- China
- Prior art keywords
- led
- lens
- flood lens
- led flood
- lamp
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Abstract
The invention provides an LED (light emitting diode) floodlight lens. The LED floodlight lens is made of a PC material, is in a cone frustum shape and comprises a paraboloid and an accommodating groove, wherein the paraboloid meets a formula that y<2>=2Px, the coordinate axis of the formula uses the center point of the bottom surface of the LED floodlight lens as the origin, uses the central axis of the LED floodlight lens as the axis x, and uses the axis vertical to the axis x as the axis y, and the value of the P is 3.25; the accommodating groove is formed in the center part of the bottom surface of the LED floodlight lens and is used for accommodating an LED lamp, and the LED floodlight lens is integrally formed. The invention also provides a lamp. The LED floodlight lens and the lamp provided by the invention have the advantages that the floodlight effect can be better, and in addition, the floodlight lens can be firmly fixed on the lamp.
Description
Technical field
The present invention relates to a kind of lighting apparatus, relate in particular to a kind of LED flood lens and light fixture.
Background technology
In prior art, there is floodlight poor effect in the flood lens on light fixture, and the utilization rate of LED luminous flux is low, cannot realize well the problem of floodlight.In addition, the flood lens on light fixture is not very firm.
Summary of the invention
The technical problem to be solved in the present invention is to overcome the deficiency that above-mentioned prior art exists, and proposes a kind of LED flood lens, can solve the fixing unstable problem of floodlight poor effect and LED flood lens.
For solving the problems of the technologies described above, the present invention proposes a kind of LED flood lens, and the material of LED flood lens is PC, and LED flood lens is round table-like, and it comprises: parabola, and parabola meets formula:
, wherein, it is initial point that the reference axis of formula be take the central point of bottom surface of LED flood lens, take LED flood lens central shaft as
axle, with perpendicular to
axle is
axle,
value is 3.25; And holding tank, holding tank is located at the center of the bottom surface of LED flood lens, for holding LED lamp; Wherein, LED collector lens is one-body molded.
Preferably, the span of the radius of the bottom surface of LED flood lens is 8mm ± 0.2mm, and the span of the radius of the end face of LED flood lens is 20mm ± 0.2mm, and the high value of LED flood lens is 15mm ± 0.2mm.
Preferably, LED flood lens is used for scope at the luminous intensity distribution of the beam angle of 28 ° to 34 °.
The present invention also proposes a kind of light fixture, and it comprises cover, lamp body, bottom, band LED aluminium base and lens unit, and lens unit comprises LED flood lens described above.
Preferably, comprise the LED lamp of 5 row 5 row with LED aluminium base, the corresponding LED lamp of lens unit is provided with the LED flood lens of 5 row 5 row.
Preferably, lens unit is provided with four columns, and column is provided with cavity, and the corresponding cavity of band LED aluminium base is provided with through hole, and lens unit is fixed on and is with on LED aluminium base by the screw mode in the cavity that through hole inserts column of pass.
Preferably, the minimum incidence angle of LED lamp directive LED flood lens is 36 °.
Compared with prior art, LED flood lens of the present invention, by simulating paraboloidal formula according to the feature of lens material, more according to this formula, manufacture lens, make lens can realize exactly total reflection, reduce light losing, also be that light is more dispersed, floodlight effect is better, and LED flood lens can be securely fixed on light fixture more.
Accompanying drawing explanation
Fig. 1 is the cutaway view of flood lens of the present invention.
Fig. 2 is the front view of flood lens of the present invention.
Fig. 3 is the top view of flood lens of the present invention.
Fig. 4 is the explosive view of light fixture of the present invention.
Fig. 5 is the front view of lens unit.
Fig. 6 is the top view of lens unit.
Fig. 7 is the side view of lens unit.
Fig. 8 is the index path of flood lens of the present invention.
Fig. 9 is the distribution curve flux figure of flood lens of the present invention.
Description of reference numerals is as follows: lens unit 1 LED flood lens 11 parabola 111 holding tank 112 band LED aluminium base 2 LED lamp 21 lamp body 3 bottom 4 covers 5.
The specific embodiment
In order to further illustrate principle of the present invention and structure, existing by reference to the accompanying drawings to a preferred embodiment of the present invention will be described in detail.
Refer to Fig. 1 to Fig. 3, LED flood lens 11 of the present invention, LED flood lens 11 is round table-like, and it comprises: parabola 111 and holding tank 112.
Refer to Fig. 1, the span of the radius a of the bottom surface of LED flood lens 11 is 8mm ± 0.2mm, and the span of the radius c of the end face of LED flood lens 11 is 20mm ± 0.2mm, and the span of the high b of LED flood lens 11 is 15mm ± 0.2mm.In the present embodiment, the radius a of the bottom surface of LED flood lens 11 is 8mm, and the radius c of the end face of LED flood lens 11 is 20mm, and the high b of LED flood lens 11 is 15mm.
Please continue to refer to Fig. 1 to Fig. 3, parabola 111 meets formula:
.Wherein, it is initial point that the reference axis of formula be take the central point of bottom surface of LED flood lens 11, take LED flood lens 11 central shaft as
axle, with perpendicular to
axle is
axle,
value is 3.25.In order to reach good light distribution effect, the formula of expressing parabola 111 features by software simulation, manufactures the parabola 111 of LED flood lens 11 according to this formula, make LED flood lens 11 can realize total reflection.Utilize the produced LED flood lens 11 of this formula, can realize the luminous intensity distribution of the beam angle of scope between 28 ° to 34 °.
Holding tank 112 is located at the center of the bottom surface of LED flood lens 11, for holding LED lamp 21.
In the present embodiment, the material of LED flood lens 11 is PC(Polycarbonate, Merlon).
Refer to Fig. 4 to Fig. 7, the present invention also proposes a kind of light fixture, and it comprises cover 5, lamp body 3, bottom 4, band LED aluminium base 2 and lens unit 1.Lens unit 1 comprises above-mentioned LED flood lens 11.
In the present embodiment, comprise the LED lamp 21 of 5 row 5 row with LED aluminium base 2, the corresponding LED lamp 21 of lens unit 1 is provided with the LED flood lens 11 of 5 row 5 row.
Lens unit 1 is provided with four columns.Column is provided with cavity, and band LED aluminium base 2 corresponding cavitys are provided with through hole, and lens unit 1 is fixed on and is with on LED aluminium base 2 by the screw mode in the cavity that through hole inserts column of pass.
Refer to Fig. 8, according to refraction principle, from lens, inject to the light of air, when incidence angle is greater than certain value (critical value), the angle of emergence is 90 degree, start to occur total reflection, because the material of LED flood lens 11 of the present invention is PC, it is 23 ° that the critical table of looking into this material obtains critical value, in the light of the parabola 111 of directive LED flood lens 11, incidence angle minimum is 36 °, is greater than critical value, meets total reflection.Light after parabola 111 reflection, directive lens front end, incidence angle is now for being acute angle, according to refraction principle: light is during from optically denser medium directive optically thinner medium, and the angle of emergence is greater than incidence angle, makes divergence of beam penetrate.
Refer to Fig. 9, from distribution curve flux, can learn, source light is after parabola 111 reflections, and maximum luminous intensity is 2500 cd (candela, candela) left and right, and the luminous intensity of half is 1250cd, can show that in the figure beam angle is 31 °.
Compared with prior art, LED flood lens of the present invention, by simulating paraboloidal formula according to the feature of lens material, more according to this formula, manufacture lens, make lens can realize exactly total reflection, reduce light losing, also be that light is more dispersed, floodlight effect is better, and LED flood lens can be securely fixed on light fixture more.
The foregoing is only better possible embodiments of the present invention, not limit the scope of the invention.The equivalent structure that all utilizations description of the present invention and accompanying drawing content have been done changes, and is all included in protection scope of the present invention.
Claims (7)
1. a LED flood lens, the material of described LED flood lens is PC, it is characterized in that, and described LED flood lens is round table-like, and it comprises:
Parabola, described parabola meets formula:
, wherein, it is initial point that the reference axis of described formula be take the central point of bottom surface of described LED flood lens, take described LED flood lens central shaft as
axle, with perpendicular to described
axle is
axle,
value is 3.25; And
Holding tank, described holding tank is located at the center of the bottom surface of described LED flood lens, for holding described LED lamp;
Wherein, described LED collector lens is one-body molded.
2. LED flood lens as claimed in claim 1, it is characterized in that, the span of the radius of the bottom surface of described LED flood lens is 8mm ± 0.2mm, the span of the radius of the end face of described LED flood lens is 20mm ± 0.2mm, and the high value of described LED flood lens is 15mm ± 0.2mm.
3. LED flood lens as claimed in claim 1, is characterized in that, described LED flood lens is the luminous intensity distribution at the beam angle of 28 ° to 34 ° for scope.
4. a light fixture, is characterized in that, it comprises cover, lamp body, bottom, band LED aluminium base and lens unit, and described lens unit comprises the LED flood lens as described in claims 1 to 3 any one.
5. light fixture as claimed in claim 4, is characterized in that, the described LED lamp that comprises 5 row 5 row with LED aluminium base, and the corresponding described LED lamp of described lens unit is provided with the LED flood lens of 5 row 5 row.
6. light fixture as claimed in claim 4, it is characterized in that, described lens unit is provided with four columns, described column is provided with cavity, the corresponding described cavity of described band LED aluminium base is provided with through hole, and the mode that described lens unit passes in the cavity that described through hole inserts described column by screw is fixed on described band LED aluminium base.
7. light fixture as claimed in claim 4, is characterized in that, the minimum incidence angle of LED flood lens is 36 ° described in described LED lamp directive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310193502.6A CN104180293A (en) | 2013-05-22 | 2013-05-22 | LED (light emitting diode) floodlight lens and lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310193502.6A CN104180293A (en) | 2013-05-22 | 2013-05-22 | LED (light emitting diode) floodlight lens and lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104180293A true CN104180293A (en) | 2014-12-03 |
Family
ID=51961526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310193502.6A Pending CN104180293A (en) | 2013-05-22 | 2013-05-22 | LED (light emitting diode) floodlight lens and lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104180293A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101573556A (en) * | 2006-12-29 | 2009-11-04 | 皇家飞利浦电子股份有限公司 | Floodlight with tiltable beam |
| CN102338292A (en) * | 2010-07-15 | 2012-02-01 | 良盟塑胶股份有限公司 | LED (Light-emitting Diode) device |
| CN102759065A (en) * | 2011-04-26 | 2012-10-31 | 海洋王照明科技股份有限公司 | Light emitting diode (LED) flood lens, LED flood lamp and lighting equipment |
| CN202629908U (en) * | 2012-04-09 | 2012-12-26 | 厦门龙胜达照明电器有限公司 | Light emitting diode (LED) lens |
-
2013
- 2013-05-22 CN CN201310193502.6A patent/CN104180293A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101573556A (en) * | 2006-12-29 | 2009-11-04 | 皇家飞利浦电子股份有限公司 | Floodlight with tiltable beam |
| CN102338292A (en) * | 2010-07-15 | 2012-02-01 | 良盟塑胶股份有限公司 | LED (Light-emitting Diode) device |
| CN102759065A (en) * | 2011-04-26 | 2012-10-31 | 海洋王照明科技股份有限公司 | Light emitting diode (LED) flood lens, LED flood lamp and lighting equipment |
| CN202629908U (en) * | 2012-04-09 | 2012-12-26 | 厦门龙胜达照明电器有限公司 | Light emitting diode (LED) lens |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20141203 |